net.sf.tweety.arg.dung

Class SemiStableReasoner

java.lang.Object

net.sf.tweety.commons.Reasoner

net.sf.tweety.arg.dung.AbstractExtensionReasoner

net.sf.tweety.arg.dung.SemiStableReasoner

public class SemiStableReasoner
extends AbstractExtensionReasoner

This reasoner for Dung theories performs inference on the semi-stable extensions.

Author:

Matthias Thimm

Constructor Summary

Constructors

Constructor and Description
SemiStableReasoner(BeliefBase beliefBase) Creates a new semi-stable reasoner for the given knowledge base using sceptical inference.
SemiStableReasoner(BeliefBase beliefBase, int inferenceType) Creates a new semi-stable reasoner for the given knowledge base.

Method Summary

Modifier and Type	Method and Description
java.util.Set<Extension>	computeExtensions() Computes the extensions this reasoner bases upon.
protected PlBeliefSet	getPropositionalCharacterisationBySemantics(java.util.Map<Argument,Proposition> in, java.util.Map<Argument,Proposition> out, java.util.Map<Argument,Proposition> undec) Returns the semantic-specific propositional characterization of the underlying Dung theory, see getPropositionalCharacterisation.

Methods inherited from class net.sf.tweety.arg.dung.AbstractExtensionReasoner

getExtensions, getInferenceType, getPropositionalCharacterisation, getReasonerForSemantics, query

Methods inherited from class net.sf.tweety.commons.Reasoner

getKnowledgeBase

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SemiStableReasoner

public SemiStableReasoner(BeliefBase beliefBase,
                          int inferenceType)

Creates a new semi-stable reasoner for the given knowledge base.

Parameters:

beliefBase - a knowledge base.

inferenceType - The inference type for this reasoner.

SemiStableReasoner

public SemiStableReasoner(BeliefBase beliefBase)

Creates a new semi-stable reasoner for the given knowledge base using sceptical inference.

Parameters:

beliefBase - The knowledge base for this reasoner.

Method Detail

computeExtensions

public java.util.Set<Extension> computeExtensions()

Description copied from class: AbstractExtensionReasoner

Computes the extensions this reasoner bases upon.

Specified by:

computeExtensions in class AbstractExtensionReasoner

Returns:

A set of extensions.

getPropositionalCharacterisationBySemantics

protected PlBeliefSet getPropositionalCharacterisationBySemantics(java.util.Map<Argument,Proposition> in,
                                                                  java.util.Map<Argument,Proposition> out,
                                                                  java.util.Map<Argument,Proposition> undec)

Description copied from class: AbstractExtensionReasoner

Returns the semantic-specific propositional characterization of the underlying Dung theory, see getPropositionalCharacterisation.

Specified by:

getPropositionalCharacterisationBySemantics in class AbstractExtensionReasoner

Parameters:

in - propositional variables of in arguments.

out - propositional variables of out arguments.

undec - propositional variables of undec arguments.

Returns:

the semantic-specific propositional characterization of the underlying Dung theory, see getPropositionalCharacterisation.